1031045120 has 256 divisors, whose sum is σ = 3019852800. Its totient is φ = 330301440.

The previous prime is 1031045117. The next prime is 1031045129. The reversal of 1031045120 is 215401301.

It is a tau number, because it is divible by the number of its divisors (256).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031045129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33259505 + ... + 33259535.

It is an arithmetic number, because the mean of its divisors is an integer number (11796300).

Almost surely, 2^1031045120 is an apocalyptic number.

1031045120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031045120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1509926400).

1031045120 is an abundant number, since it is smaller than the sum of its proper divisors (1988807680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031045120 is an frugal number, since it uses more digits than its factorization.

1031045120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1031045120 is about 32109.8913109341. The cubic root of 1031045120 is about 1010.2430941177.

Adding to 1031045120 its reverse (215401301), we get a palindrome (1246446421).

The spelling of 1031045120 in words is "one billion, thirty-one million, forty-five thousand, one hundred twenty".